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Match Document Document Title
7383725 Flow detecting device having heating element  
A flow detecting device is provided to a fluid passage through which a main flow of fluid passes. The flow detecting device includes a sensor body, a heating element, a lead portion, and a guard...
7377185 Device and method of detecting flow rate/liquid kind, and device and method of detecting liquid kind  
A flow rate/liquid type detecting method for detecting the flow rate of a fluid and, at the same time, detecting any one of or both the type of the fluid and the concentration of the fluid,...
7377161 Air flow measuring device provided with a vent in air passage  
The present invention provides an air flow measuring device comprising a housing with a sub-passage having a inlet and a outlet for air flow formed in the housing, the sub-passage further having a...
7363182 System and method for mass flow detection device calibration  
Systems and methods for correcting measurements of fluid flow using device-specific information to compensate for differences between individual devices of the same design. In one embodiment, a...
7360414 Device for determining at least one parameter of a medium flowing in a conduit and having a separation opening in the bypass passage  
Devices for determining at least one parameter of a medium flowing in a conduit, in particular for determining the air-mass flow in the intake tract of an internal combustion engine, including a...
7313954 Apparatus for measuring flow characteristics  
A flow detection device for detecting a flow characteristic of a fluid within a pipe is disclosed. The flow detection device includes a first channel portion that defines a first channel with an...
7305877 Device for determining at least one parameter of a medium flowing in a line having diversion surface  
A device for determining at least one parameter of a medium flowing in a line, in particular for determining the air mass flow rate in the intake manifold of an internal combustion engine, which...
7302843 Mass air flow housing for mass air flow sensor  
A housing structure for improving air flow to the intake manifold of an internal combustion engine is claimed. The present invention is a replacement part for a factory-installed mass air flow...
7296465 Vertical mount mass flow sensor  
A thermal mass flow meter for measuring flow rate of a fluid includes a conduit that is configured to receive the fluid and that defines a primary flow path between an inlet and an outlet of the...
7269999 Thermal airflow meter  
A thermal airflow meter excellent in flow-rate measurement accuracy is provided. The airflow meter has a flow-rate measuring element comprising a heat resistor and a temperature-compensating...
7260986 Airflow meter with device for the separation of foreign particles  
A device is provided for determining at least one parameter of a medium flowing in a line in a main flow direction, e.g., a parameter of the intake air mass of an internal combustion engine. The...
7258002 Fluid flow detecting apparatus  
A fluid flow detecting apparatus is disclosed for detecting a characteristic of fluid flowing in a fluid passage. The fluid flow detecting apparatus includes a sensor body that defines a bypass...
7234349 Air flow rate measuring device having bypass passage  
A measurement body is provided with a sub-outlet arranged between a U-turn portion of a bypass passage and a main outlet. The sub-outlet includes a first sub-outlet positioned on a path of air,...
7228733 Fluid detection device  
One or a plurality of branch paths ( 3 ) having opening end portions ( 2 ) formed in the vicinity of an inner wall surface of a main path ( 1 ) through which a fluid flows so as to point the...
7216535 Air flow measuring device and engine having the air flow measuring device  
The present invention provides an air flow measuring device comprising a housing with a sub-passage having a inlet and a outlet for air flow formed in the housing, the sub-passage further having a...
7216534 Substrate processing apparatus and thermal type flowmeter suitable to the same  
In a thermal type flowmeter 60 , a heating/heat-sensitive coil 64 which is shaped as a coil is fit close into an approximately central portion of a duct pipe 63 . A flow rate computing circuit ...
7210194 Airflow sensor system for monitoring air inlet airflow and air outlet airflow of a vacuum cleaner  
An airflow sensor system for monitoring air inlet airflow and air outlet airflow of a vacuum cleaner is provided according to an embodiment of the invention. The airflow sensor system includes a...
7201047 Air flow measuring device  
The present invention provides an air flow measuring device comprising a housing with a sub-passage having a inlet and a outlet for air flow formed in the housing, the sub-passage further having a...
7201046 Flowmeter with resistor heater  
An air temperature detector 12 is disposed close to an auxiliary passage sidewall 15 , which has an auxiliary passage wall hole 9 formed near the air temperature detector 12 . A...
7185539 Flow sensor  
In a flow sensor ( 1 ) including an anticorrosion metallic diaphragm; an insulating film formed on one surface of the metallic diaphragm; and a flow rate measuring sensor formed on the insulating...
7178409 Laminar flow meter or controller  
Volumetric flow meters, volumetric flow controllers, mass flow meters, and mass flow controllers using a transverse laminar flow assembly are described. The flow assembly may be constructed from a...
7159457 Mass flow sensor and method for operating the mass flow sensor  
A mass flow sensor ( 1 ) has a sensor element whose measuring signal is representative of a mass flow in a main duct ( 4 ), specifically without taking into account the direction of flow of the...
7121139 Thermal mass flow rate sensor having fixed bypass ratio  
A flow rate sensor includes a main conduit, a sensor tube and a bypass tube connecting an upstream portion of the main conduit to a downstream portion of the main conduit such that flow through the...
7107834 Thermal mass flow rate sensor including bypass passageways and a sensor passageway having similar entrance effects  
A sensing apparatus for use in a mass flow rate sensor for measuring a fluid flow rate includes a main conduit for containing a fluid flow, and a sensor passageway for tapping a portion of the...
7062963 Flow velocity measuring device  
A flow velocity measuring device is able to conduct a fluid to a sensor element after removal of dust and dirt contained in the fluid to accurately measure the flow velocity of the fluid even when...
7059184 Split-flow-type flow sensor device  
A split-flow-type flow sensor apparatus includes a main flow passage and a bypass flow passage, wherein a thermal flow sensor is placed on the wall face of the bypass flow passage. A first...
7059183 Air flow measuring device  
The present invention provides an air flow measuring device comprising a housing with a sub-passage having an inlet and an outlet for air flow formed in the housing, the sub-passage further having...
7051589 Heating resistor flow rate measuring instrument  
A heating resistor flow rate measuring instrument, having a heating resistor and a thermally sensitive resistor disposed in a sub-passage of a main passage. The heating resistor is disposed in a...
7047805 Fluid flow meter having an auxiliary flow passage  
A device for measuring fluid flowing in a duct is disclosed. The device includes a housing having a first flow passage, a nozzle, a second flow passage, a first electrical element, and a second...
7043978 Airflow meter  
An airflow meter has a bypass passage disposed in an air passage and a sensing portion disposed in the bypass passage to detect an airflow amount. The bypass passage is provided with a restriction...
7036366 Air flow measurement system having reduced sensitivity to flow field changes  
A system for measuring air flow rate in a duct includes an air flow sensor and an air flow conditioning device for collecting and accelerating a portion of the total air stream to the sensor, which...
7032446 Flowrate measuring device with improved flow introduction into sub-passage outlet  
There is provided a flow rate measuring device which comprises a means for introducing a backward flow of the main passage into the sub-passage through the outlet of the sub-passage of the flow...
7028544 Mass flowmeter for measuring by the CT method  
A mass flowmeter of the thermal type provided with a flow sensor with a flow tube through which a fluid can flow during operation, with a temperature sensor in an upstream position (A) and a heater...
7000463 Reynolds number correction function for mass flow rate sensor  
A mass flow rate sensor uses a Reynolds number correction function to compensate for errors in a bypass ratio of the sensor for all gases, based on the fact that all bypass errors are functions of...
6973825 Hot-wire mass flow sensor with low-loss bypass passage  
A mass fluid flow sensor includes an internal bypass passage characterized by a first section that converges along a first axis to define a nozzle, and a radially-expanded generally-cylindrical...
6941807 Device with an air intake manifold and an air mass sensor arrangement inserted therein  
The invention relates to a device with an air inlet manifold ( 1 ) and an air mass sensor arrangement ( 2 ) inserted radially therein, the insertion opening ( 3 ) of which is arranged perpendicular...
6928865 Thermal flowmeter having a laminate structure  
The present invention relates to a thermal flowmeter capable of sensing a flow rate in either direction, having a linear output characteristic, and producing a stable output without impairing the...
6918295 Thermal mass flow rate sensor providing increased rate of heat transfer to gas  
A sensing apparatus for use in a mass flow rate sensor for measuring a fluid flow rate includes a main conduit for containing a fluid flow, and a capillary tube for tapping a portion of the fluid...
6915688 Gas-flow measuring instrument  
In a gas-flow measuring instrument for measuring a gas flow in an intake gas passage for sucking gas, an abnormal output, deterioration per hour, stain, and breakage of a flow measuring element...
6905242 Sensor temperature control in a thermal anemometer  
A thermal anemometer that separates sensor heating from sensor temperature measurement through a switched sampling technique. This approach demonstrates several advantages over the more typical...
6886401 Thermal flow sensor having sensor and bypass passages  
A laminated filter is fit in a passage space formed in a body. The laminated filter is made of a mesh plate including a mesh part, a first blocking plate including a blocking part, a second...
6871534 Flow rate measuring device  
A post in a fluid passage for passing a fluid flow extends across a part of the fluid flow; a measuring duct in the post extends through the post; and a flow rate detector is located in the...
6871533 Flowmeter with element for reducing the formation of turbulence in the flowing medium  
Devices for determining at least one parameter of a flowing medium having an inner pipe according to the related art have the disadvantage that whirls are formed, which causes increased signal...
6868722 Air flow rate measuring apparatus  
A diversion passage is constructed into an inverted U shape in which an upstream diversion passage and a downstream diversion passage each having a passage direction in a direction of projection of...
6854326 Measurement apparatus for measuring physical quantity such as fluid flow  
Resin members, on the surfaces of which metal films are formed, are used for; an auxiliary air passage provided in a main air passage, in which a sensor element of a physical quantity sensor such...
6851311 Thermal-type flow meter with bypass passage  
A flow measurement sensor accurately outputs signals even when pulsation flow is generated at high engine speed and also when pulsation flow accompanying reverse flow is generated. The flow...
6843122 Mass flow controller for control purge and managing method of the same  
The present invention relates to a mass flow controller for a control purge and a managing method of the same. When a user sets the mode to a control purge mode capable of controlling a maximum...
6826955 Mass fluid flow sensor having an improved housing design  
A mass fluid flow sensor for determining the amount of fluid inducted into an internal combustion engine, for example, is disclosed. The mass fluid flow sensor includes an external intake fluid...
6826953 Flow sensor  
An apparatus and method for measuring flow. A flow sensor includes a sensor conduit and a bypass having at least one capillary tube. At least one of the length, inside diameter, and cross-sectional...
6820479 Device for determining at least one parameter of a flowing medium  
A device includes a sensor carrier, on which is arranged a sensor element introduced into the flowing medium. The sensor carrier is produced separately, and the at least one sensor element may be...
Matches 1 - 50 out of 182 1 2 3 4 >